Question

Why are the coefficients before a chemical symbol important?​F. ​ They show the number of elements in each molecule.​G. ​ They indicate the number of molecules of each substance.​H. ​ They describe the number of times each molecule reacts.​J. ​ They explain the order in which the reaction takes place

Answer 1

Answer:They indicate the number of molecules of each substance

Explanation:

When we write chemical reaction equations, we usually put a number before the symbol of each reactant.

These coefficient shows the number of molecules of that specie that is involved in the balanced reaction equation for the reaction.

These coefficients are important because they are used in carrying out stoichiometric calculations.